Paper receptacle



Aug. 13, 1929.

H. B. RUDD PAPER RECEPTACLE Original Filed July 5, 1924 ATTORNEY Patented Aug. 13, 1929.

satires stares mast? HARRY a. noun, on NEW roan, my.

PAPER REGEET&GLE.

Application filed July 5, 1924, Serial No. 7%,260. Renewedrflay 13, 1929.

This invention relates to paper bottles. Various attempts have been made to produce a paper bottle which-could be used as a substitute for the customary glass milk bottle, but up to this time no one has succeeded in devising one which was sufficiently practical to warrant its use as a substltute for the glass bottle. The paper milk bottles heretofore proposed were either too expensive to manufacture, by reason of the number of parts employed, were not pract1- cal 'on account of difiiculties encountered in devising satisfactory machines and processes for making them, or were inherently 1mpracticable on account of lack of strength,

rigidity, etc. so

The principal object of this invention is to provide a thoroughly practical paper bottle which is well adapted for use as a sub stitute for the customary glass milk bottle.

,One prerequisite of any practical paper milk bottle is that it be capable of being shipped to the dairyman in knock-down or unassembled condition, and that the bodies be capable of nesting, otherwise the bottles would occupy so much space that the expense of storing them and of crating and shipping them wouldprohibit their use as substitutes for glass milk bottles. I therefore. make use of this nestingfeature al-' though it has been proposed by others,,but

in the paper bottles proposed by others the additional features were such as to defeat the practicability whereas the additional features employed by me all contribute towards a commercially successful paper bottle. i

The invention is illustrated in the accompanying drawing in which:

Fig. 1 is an elevation of a paper tube from which the bottle is made;

Fig. 2 is a transverse section taken on the line 22 of Fig. 1;

Fig. 3 is a side elevation .of the complete bottle;

Fig. 4 is a longitudinal section through the complete bottle;

Fig. 5"is a transverse section taken on the line 5-5 of Fig. 4;

5 Fig. 6 is a detail sectional view showing.

the manner in which the metal strip is attached to the body portion;

F ig.- 7 is a sectional view corresponding with Fig. 6 illustrating the manner in which rugations may be produced in the metal strip is bent into engagement with the flange on the bottom member;

Fig. 8 is a sectional view corresponding with Figs. 6 and 7, showing the position of the parts after the final forming operation on the metal strip;

Fig. 9 is a side elevation illustrating the manner in which the body portions, together with the metal strips attached thereto, may

be nested;

Fig. 10 is a plan view of a modified form of metal strip which may be employed; and

Fig. 11 is a plan view of a further modified form of such metal strip:

The improved bottle is formed from a paper tube 1 of. the kind illustrated in Fig. 1, which may be made by winding a sheet of paper of the required thickness on a mandrel and uniting the meeting edges of the sheet." The tube has a slight taper from the bottom upwards in order to permit nesting of the body portionsof the bottle as hereinafter described. This slight taper may be produced by winding the paper on a mandrel which has a corresponding taper. The meeting edges of the paper are preferably overlapped to form a joint orrseam of the preferably rounded or arcuate in cross-section as shown in Fig. 5, and gradually become deeper as they approach themouth of the bottle. By corrugating the upper part of the bottle in this manner a tapering neck portion is formed as the surplus material near-the mouth of the bottle is taken up in the formation of the relatively deep corat this place. t The corrugations the material by any suitable means. i 7

By means of suitable dies the upper end of the'tubeois then turned back upon itself and moulded so as to form a head 7 and an offset 5. The offset 5 results in the formation of an interior seat 6 for the usual milk bottle cap. When the bead 7 is formed the paper is consolidated and the'corrugations are mashed together so that the interior and exterior surface of the bead is substantially smooth. The material at the outer lower edge of the bead during the moulding operation is pressed into the corrugations just below the seat 6 as shown at 8.

The lower part of the body portion of the bottle has attached thereto a cylindrical strip of metal 9 (Figs. 6 and 9). This strip of metal is preferably attached to the body portion of the bottle by providing the latter with a circumferential rib 10 which engages in a corresponding recess 11 formed in the metal strip 9. By this means the metal strip 9 is firmly secured to the body portion of the bottle. As shown in Fig. 6, the lower end of the metal strip 9 projects below the lower edge of the body portion of the bottle. The bottles are furnished to the dairyman in knocked-down or unassembled condition. The body portions, together with the metal strips 9 attached thereto, may be nested in the manner shown in Fig. 9 due to the slight taper provided on the body portion. With the body portions there is furnished a number of bottom members which are adapted to. be clamped in place by the dairyman before the bottle is filled. The bottom members may comprise a disc 19 of suitable material such as paper, preferably concaved upwardly as shown in Figs. 4, 6, 7 and 8 in order to impart additional strength thereto. Each bottom member 19 is provided with a marginal flange 20 and may also, if desired, be provided with a slight bulge or circumferential rib 12 which is adapted to fit into the. circumferential rib 10 at the lower end of the body portion. When it is desired to assemble the bottle, one of the bottom members 19 is positioned in the lower end of the body portion as shown in Fig. 6, and then the lower end of the metal strip 9 is bent inwardly and upwardly around the marginal flange 20 of the bottom member as indicated in Fig. 7. The final operation is to impart afurther bend to the parts shown in Fig. 7 in order to bring the metal strip and the paper clamped within it to the general configuration shown in Fig. 8. As this configuration is given to the metal strip the latter is tightly compressed against the paper and forms a tight joint between the lower end of the body portion and the edge of the bottom disc. The bending of the metal strip to the position shown in Fig. 7 and the final forming thereof as shown in Fig. 8 may be performed in any suitable machine intended for the purpose. Obviously the steps shown in Figs. 7 and 8 might be combined and when the metal strip is bent upwardly around the flange of the bottom disc, it might simultaneously be formed to assume the shape shown in Fig. 8. The exact shape of the joint shown in Fig. 8 is unimportant, and the formation of the strip into the exact configuration shown in this figure might be considerably varied, but it has been found that a joint of this character is advantageous as the final bending of the strip to the shape shown in Fig. 8 completes the curve formedby the rib 10 and recess 11 in the body portion and metal strip respectively, and furthermore this type of joint provides an effective liquid-proof juncture between the body portion and the bottom disc. If desired, the joint may be made even tighter by providing the inner surface of the upturned portion of the metal strip with a plurality of corrugations or indentations shown at 13 in Fig.

Fig. 10 shows a modified form of metal strip which may be used. This may consist of a wire 14 bent to the general shape shown. A strip of this character may be attached to the body portion in the same manner described above and may be bent into engagement with the flange of the bottom disc 10 in the same way as above described. -With this type of strip the reversely curved portions15 at one side of the strip will alternate with the reversely curved portions 16 at the other side of the strip, and when the two sides of the strip are sufiiciently compressed against the paper, the said portions 15 and 16 of the wire will serve to bite into the material and effect a firm and liquidproof joint.

Fig. 11 shows still another type of metal strip which may be employed. It may comprise a strip of network formed from longitudinal wires'l7 and transverse wires 18. The two sets of wires may be united, if desired, in any suitable manner, such as by welding. This type of strip may also be attached to the body portion in the manner described above and may be bent around the marginal flange of the bottom disc as above described. Due tothe foraminous nature of this type of strip, it will produce a biting action into the paper material and form a tight joint betweenthe body portion and the bottom disc.

As stated above the corrugations 4 are' sibility of the corrugations injuring or weak-' ening the seam 3, such as would be the case if the seam were parallel All) the axis of the tube and one of the corrugations happened to coincide with the seam.

The improved bottle is inexpensive to manufacture as the number of parts required is necessary to produce the mouth portion part of the body portion as clearly indicated of the bottle. This portion of the bottle is formed entirely from the paper in the manner described above. Due to the few parts employed, the bottle is inexpensive to manufacture and may be sold at a price which is .sufliciently low to warrant their use as a substitute for the customary glass milk bottle. Due to the fact that the body portions may be nested as shown at Fig. 9, the bottles may be conveniently and economically shipped and stored. This would not be the case if the bottles could not nest, because they would occupy so much space that the expense of shipping or storing them would prohibit their use as.a substitue for the customary glass milk bottle.

The metal strip 9 constitutes in effect a in Fi 9, because it is firmly attached thereto. 511 that the dairyman has to do is to slip'the bottom disc in place and then bend the lower part of the metal strip into engagement with the flange of the bottom disc in a suitable machine intended for the purpose, as above described.

Throughout the above description paper has been referred to as the material of which the bottle is made. While I prefer to use paper, other materials of a similar nature may be used if desired.

Although the bottle herein disclosed was designed primarily as a substitute for the customary glass milk bottle, it may be used for other purposes than holding milk.

I claim':

1. A paper bottle adapted to be shipped in unassembled form and comprising a tubular body portion sli htly tapering from the bottom upwards w ereby a number of such body portions may be nested, a cylindrical strip of metal carried by the body portion and projecting below the lower edge thereof, a bottom member adapted to constitute a closure for the lower end of the body portion and being provided with a marginal flange adapted to telescope Within the tubular body portion and over which said strip of metal is adapted to be bent to secure the bottom member in place, the upper part of the body portion being corrugated longitudinally to form a tapering neck portion, the bottle being provided with an interior seat formed by a lateral offset in the paper near the upper end of the bottle, and a mouth portion above said seat formed as a result of the paper being bent back upon itself, the edge portion, of the backwardly bent part being forced into the corrugations just below said lateral offset in the paper.

2. A paper bottle adapted to be shipped in unassembled form and comprising in combination a tubular body portion, a cylindrical strip of metal supported by the body portion and projecting below the lower edge thereof, said body portion being tapered from the bottom upwards whereby a number of such body portions together with said cylindrical metal'strips may be nested, and a separate bottom member adapted to constitute a closure for the lower end of the tubular body. portion, that portion of said strip of metal which extends below the lower edge of the body portion being capable of being bent inwardly into engagement with a part of said bottom member to hold it in place.

3. A paper bottle in accordance with claim 2 in which the bottom member is provided with a marginal flange adapted to telescope within the tubular body portion and over which said strip of metal is adapted to be bent to secure the bottom member in place.

4:. A paper bottle in accordance with claim 2 in which the lower part of the body portion has a circumferential rib and the metal strip has a circumferential recess in which said rib engages to hold the metal strip on the body portion.

5. A paper bottle having a tubular body portion the upper part of which is corrugated longitudinally to form a tapering neck portion, the bottle having an uncorrudated mouth portion above the corrugated neck formed as a result of the paper being bent back upon itself and moulded or consolidated to form a bead, the paper at the outer lower edge of the bead being forced into the corrugations of the neck. e 6. A paper bottle in accordance with 'claim 5 in which the bottle is provided with an interior seat near the lower terminus of the bead formed by a lateral offset in the paper at this point.

In testimony whereof I affix my signature.

HARRY B. RUDD. 

